#ifdef nextstep3_TARGET_OS
#define _NEXT_SOURCE
#endif
-
+
+#ifdef aix_TARGET_OS
+/* for fd_set */
+#include <sys/select.h>
+#endif
+
#ifdef NON_POSIX_SOURCE
#undef _POSIX_SOURCE
#undef _POSIX_C_SOURCE
#else
+# ifndef aix_TARGET_OS
+/* already defined on aix */
#define _POSIX_SOURCE 1
+# endif
+#ifndef irix_TARGET_OS
#define _POSIX_C_SOURCE 199301L
-/* Alphas set _POSIX_VERSION (unistd.h) */
-/* ditto _POSIX2_C_VERSION
- _POSIX2_VERSION
- _POSIX_4SOURCE
+#else
+/* defines contributed by Tomasz Cholewo <tjchol01@mecca.spd.louisville.edu>
+ ( this is with gcc-2.7.2 for irix-6.{2.3} ) .. hopefully they will not
+ upset anything under irix5 ..
+ */
+#define _POSIX_C_SOURCE 199309L
+#define __EXTENSIONS__
+#endif
+/* Bogus use of non-existent variable POSIX_C_SOURCE in the supplied header files
+ for gcc-2.7.1 on Solaris forces us to define it: (this strikes when using st_atime
+ and friends in <sys/stat.h> )
*/
+
+#if (__GNUC__ == 2) && (__GNUC_MINOR__ == 7)
+/* sigh, not possible to get at bugfix release number (fixed in 2.7.2) */
+#define POSIX_C_SOURCE _POSIX_C_SOURCE
+#endif
+
#include <unistd.h>
#include <signal.h>
#endif